Checklist of alien terrestrial molluscs in New Zealand

Family: Agriolimacidae
Deroceras laeve (Muller, 1774)
Deroceras panormitanum (Lessona & Pollonera, 1882)
Deroceras reticulatum (Muller, 1774)

Family: Arionidae
Arion distinctus (Mabille, 1868)
Arion hortensis (d’Audebard de Férussac, 1819)
Arion intermedius Normand, 1822

Family: Cochlicopidae
Cochlicopa lubrica (Muller, 1774)

Family: Euconulidae
Coneuplecta calculosa (Gould, 1852)

Family: Ferussaciidae
Cecilioides acicula (Muller, 1774)

Family: Helicidae
Cantareus aspersus (Muller, 1774)

Family: Helicodiscidae
Helicodiscus singleyanus (Pilsbry, 1889)

Family: Hygromiidae
Candidula intersecta (Poiret, 1801)
Prietocella barbara (Linnaeus, 1758)

Family: Limacidae
Lehmannia nyctelia (Bourguignat, 1861)
Lehmannia valentiana (d’Audebard de Férussac, 1823)
Limacus flavus (Linnaeus, 1758)
Limax maximus (Linnaeus, 1758)

Family: Milacidae
Milax gagates (Draparnaud, 1801)
Tandonia budapestensis (Hazay, 1881)
Tandonia sowerbyi (d’Audebard de Férussac, 1823)

Family: Pupillidae
Lauria cylindracea (da Costa, 1778)

Family: Testacellidae
Testacella haliotidea (Draparnaud, 1801)

Family: Valloniidae
Vallonia excentrica (Sterki, 1893)
Vallonia costata (Muller)

Family: Vertiginidae
Vertigo ovata (Say, 1822)

Family: Zonitidae
Oxychilus alliarius (Miller, 1822)
Oxychilus cellarius (Muller, 1774)
Oxychilus draparnaudi (Beck, 1837)
Vitrea crystallina (Muller, 1774)
Zonitoides arboreus (Say, 1816)